What is CVE-2021-34433?

CVE-2021-34433 is a high-severity vulnerability in Eclipse Californium, classified under Key Exchange without Entity Authentication. CVSS score: 7.5/10. Published 2021-08-20.

How severe is CVE-2021-34433?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Eclipse Californium

CVE-2021-34433

In Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3, the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side's signature on the client side, if that signature is not i…

EPSS: 0.003 (25.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Eclipse Californium — versions 3.0.0
The Eclipse Foundation Californium — versions 2.0.0, unspecified, 3.0.0-M1

Weakness classification (CWE)

References

emo@eclipse.org (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-34433?: CVE-2021-34433 is a high-severity vulnerability in Eclipse Californium, classified under Key Exchange without Entity Authentication. CVSS score: 7.5/10. Published 2021-08-20.
How severe is CVE-2021-34433?: High severity. CVSS v3 base score is 7.5 out of 10.